Last updated: April 22, 2025
In San Blas, Mexico, December offers a unique climate experience characterized by a maximum temperature reaching 28°C (82°F) and an average of 13°C (56°F). Although the minimum temperature can dip as low as -6°C (22°F), the month typically enjoys a comfortable ambiance with high humidity levels at 87%. Rainfall is minimal, with only 8 mm (0.3 in) of precipitation over just 1 day. Visitors can expect a blend of warm days and cooler nights, making December an intriguing time to explore this vibrant coastal town.
In San Blas, Mexico, December brings a distinct chill as temperatures begin to dip, with minimums around -6°C (22°F). This shift ushers in cooler days, where the average temperature settles at 13°C (56°F), peaking at a comfortable 28°C (82°F) in the afternoons. As the year draws to a close, December's temperatures mark a notable contrast to the warmer months preceding it, particularly from May to July when averages soar closer to 22°C (72°F) and maximums often reach 35°C (95°F). The mild December weather beckons visitors to enjoy the region’s stunning landscapes without the sweltering heat, making it an ideal time for exploration and relaxation in this picturesque coastal haven.
December in San Blas, Mexico, sees a modest precipitation total of 8 mm (0.3 in), marking a calm conclusion to the rainy season. With only 1 day of rain, the month is typically characterized by drier weather compared to the intense wet months of June through September. This trend of decreasing precipitation is clear, as December follows a series of peak rainfall months, including July and September, which often deliver substantial downpours. As the year wraps up, the contrast between the heavy rains earlier in the year and the drier spells of late autumn offers a refreshing respite, inviting visitors to enjoy the mild temperatures and scenic coastal views of this charming destination.
In San Blas, Mexico, December ushers in a notable rise in humidity, reaching 87%, which aligns with the trends seen from November's 87% as well. This month marks one of the peak humidity levels of the year, comparable to October's 85%. As the dry season approaches, humidity generally drops from a high in the summer months, such as June with 78% and September at 81%. Interestingly, after a dip in the spring, where levels fall to around 64% in April and August, the humidity surges again, making December feel notably moist and balmy. This consistent trend highlights the tropical climate of San Blas, where the interplay of seasonal changes creates a unique and humid winter experience.
In December, San Blas, Mexico, experiences a small but notable decrease in the UV Index, dropping to 8, which still falls into the very high exposure category. As the year winds down, this UV Index indicates a reduction in potential sunburn risk, with an estimated burn time of 15 minutes compared to the extreme levels seen from February through October. These trends highlight the significance of effective sun protection throughout the year, particularly during the intense summer months when UV levels peak at 15. Visitors should remain vigilant and consider proper precautions even in December. For more detailed information on UV levels throughout the year, check out San Blas UV Index.
UV Risk Categories
In December, San Blas, Mexico, welcomes 284 hours of sunshine, providing a radiant backdrop to the festive holiday season. This vibrant month marks a subtle dip from the record-high sunshine of May with 349 hours, yet it remains brighter than the earlier winter months. As the year draws to a close, visitors can enjoy the pleasant contrast of warm days and cooler evenings, making it an ideal time for beach strolls and celebrations. With sunshine hours steadily decreasing from the peak in April to December's offering, this idyllic coastal town still basks in ample daylight, inviting travelers to soak up the sun while enjoying the unique charm of San Blas.
December in San Blas, Mexico, carries a 69% chance of sunny weather, making it a delightful choice for those seeking sunshine as the year wraps up. This percentage aligns closely with the trend observed in the fall months, particularly November, which boasts a 67% chance of clear skies. As the calendar transitions from the high sunny peaks of February at 83% and March at 71%, December offers a reliable and pleasant mix of warmth and sunlight. While not as bright as earlier months, December maintains a solid likelihood of sun, providing a perfect backdrop for beach activities and holiday festivities.
In San Blas, Mexico, the daylight duration experiences a gradual progression throughout the year, peaking in the summer months with an impressive 13 hours of sunlight from May through July. As we approach December, daylight begins to recede again, returning to 10 hours as the year comes to a close. This seasonal shift illustrates the vibrant nature of San Blas's climate, where longer sunlit days encourage outdoor adventures and beach relaxation in the warmer months, while the shorter daylight in winter months cultivates a cozy atmosphere perfect for enjoying local festivities. Overall, the ebb and flow of daylight not only shapes daily routines but also highlights the enchanting rhythm of life in this coastal paradise.
As December arrives in San Blas, Mexico, the gentle caress of the wind begins to soften, with an average speed of 2.3 m/s (5 mph), marking it as one of the calmest months of the year. This shift to lighter breezes contrasts sharply with the slightly more robust winds of the earlier months, particularly from January to April, where averages hovered around 2.9 to 3.5 m/s (6 to 8 mph). While the summer months of July and September experienced a dip in wind intensity, December brings a serene stillness, perfect for leisurely beach strolls or quiet evenings by the water. Overall, the gradual decline in wind speed from the bustling start of the year to the tranquil close reflects a natural rhythm, inviting visitors to immerse themselves in the peaceful charm of San Blas as the year winds down.
The weather in San Blas changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in San Blas and find detailed weather information for every month.
December experiences a wider temperature range, with nighttime lows dipping to -6°C (22°F) and daytime highs reaching up to 28°C (82°F). Despite this fluctuation, the average temperature remains comfortable at 13°C (56°F). Precipitation is minimal, with only 8 mm (0.3 in) falling over just one day, and humidity levels are quite high at 87%.
In contrast, January sees slightly milder temperatures, with minimums around -1°C (30°F) and maximums reaching 26°C (80°F), while maintaining the same average of 13°C (56°F). Rainfall increases slightly to 9 mm (0.4 in) over two days, and humidity drops to a more manageable 75%. For more detailed insights, you can check San Blas weather in January.
In December, temperatures range from a chilly minimum of -6°C (22°F) to a comfortable maximum of 28°C (82°F), with an average of 13°C (56°F) and high humidity at 87%. The month experiences little precipitation, typically only about 8 mm (0.3 in) over just one day. In contrast, February sees a noticeable increase in warmth, with minimum temperatures around 1°C (34°F) and maximums reaching 30°C (86°F), while maintaining an average of 15°C (60°F). Humidity drops to 69%, and precipitation remains the same at 8 mm (0.3 in) over one day. For more details on February weather, you can check San Blas weather in February.
In December, temperatures can be quite chilly, ranging from a minimum of -6°C (22°F) to a maximum of 28°C (82°F), with an average of 13°C (56°F). The month sees about 8 mm (0.3 in) of precipitation over just one day, accompanied by high humidity levels at 87%. In contrast, March brings warmer weather, with temperatures starting at a minimum of 3°C (38°F) and climbing to a maximum of 33°C (91°F), averaging around 18°C (66°F). Precipitation in March is lower at 4 mm (0.2 in) but still occurs only once during the month, and humidity drops to a more comfortable 65%. For those interested in detailed weather patterns, San Blas weather in March provides further insights.
In comparing the weather of December and April, there is a noticeable shift in temperature and humidity. December experiences cooler temperatures, with minimums dropping to -6°C (22°F) and an average of around 13°C (56°F), while the maximum can reach 28°C (82°F). The month is quite humid, averaging 87%, despite receiving only 8 mm (0.3 in) of precipitation over a single day. In contrast, April brings a significant warm-up, with minimum temperatures of 5°C (42°F) and an average of 20°C (69°F), peaking at a maximum of 33°C (92°F). This month enjoys a lower humidity level of 64% and less precipitation, totaling just 3 mm (0.1 in) on one day. For more specific details about April weather, you can visit San Blas weather in April.
When comparing the weather in December and May, we see a notable contrast in temperatures and conditions. In December, the average temperature hovers around 13°C (56°F), with nighttime lows dipping to -6°C (22°F) and daytime highs reaching 28°C (82°F). The month is relatively dry, featuring only 8 mm (0.3 in) of precipitation over just one day and high humidity levels of 87%. In stark contrast, May enjoys milder nights with temperatures not dropping below 8°C (47°F) and averages peaking at a warm 22°C (72°F), with highs soaring to 35°C (95°F). May also sees more rainfall, with 21 mm (0.8 in) spread over three days, while humidity decreases to a comfortable 75%. For more detailed information, check out San Blas weather in May.
December and June present contrasting weather conditions. In December, temperatures range from a chilly minimum of -6°C (22°F) to a more pleasant average of 13°C (56°F), with daytime highs reaching up to 28°C (82°F). The month sees minimal precipitation, accumulating to just 8 mm (0.3 in) over only one day, and humidity levels are relatively high at 87%. In stark contrast, June boasts warmer temperatures, with a minimum of 11°C (52°F) and an average of 21°C (71°F), peaking at a maximum of 35°C (95°F). It experiences significantly higher rainfall, totaling 98 mm (3.9 in) across 12 days, while humidity decreases slightly to 78%. For more detailed insights, check out San Blas weather in June.
The weather in December contrasts sharply with that of July, showcasing the diverse climate of the region. In December, temperatures range from a chilly minimum of -6°C (22°F) to a comfortable maximum of 28°C (82°F), with an average of 13°C (56°F). This month experiences very little precipitation, with only 8 mm (0.3 in) over a single day, creating a relatively dry atmosphere complemented by high humidity at 87%. In contrast, July offers noticeably warmer conditions, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 31°C (89°F) and an average of 20°C (69°F). This month is significantly wetter, receiving 110 mm (4.3 in) of rain over 14 days, and features lower humidity at 67%. For those interested in learning more about the July weather specifics, you can visit San Blas weather in July.
December's weather is marked by a significant chill, with temperatures ranging from a minimum of -6°C (22°F) to a maximum of 28°C (82°F), offering a much wider range than August. The average temperature in December is 13°C (56°F), and only one day of precipitation is recorded, totaling just 8 mm (0.3 in) with high humidity at 87%. In contrast, August experiences milder conditions, with temperatures fluctuating between a minimum of 12°C (54°F) and a maximum of 31°C (89°F). It sees more precipitation, totaling 79 mm (3.1 in) over about ten days, and significantly lower humidity at 64%. If you're curious about how the weather trends in San Blas during August, you can find more detailed information here: San Blas weather in August.
December weather features a broader temperature range with nighttime lows dipping to -6°C (22°F) and averaging around 13°C (56°F), while maximum daytime temperatures can reach up to 28°C (82°F). In contrast, September offers milder temperatures with a minimum of 9°C (48°F) and an average of 19°C (67°F), peaking at 29°C (85°F). While December tends to be drier with only 8 mm (0.3 in) of precipitation over just one day, September is significantly wetter, averaging 117 mm (4.6 in) across 14 days of rain. Additionally, December features higher humidity levels at 87%, compared to September's 81%. For more details on this seasonal comparison, check out San Blas weather in September.
In comparing the weather of December and October, December tends to be cooler, with temperatures ranging from a minimum of -6°C (22°F) to an average of 13°C (56°F) and a maximum of 28°C (82°F). Precipitation is minimal in December, averaging only 8 mm (0.3 in) over just 1 day, with humidity at a relatively high 87%. In contrast, October boasts milder temperatures, with a minimum of 5°C (40°F) and an average high of 29°C (85°F), while experiencing significantly more rainfall at 40 mm (1.6 in) across 6 days. Humidity levels in October are slightly lower at 85%. For a detailed look at October's weather, you can visit San Blas weather in October.
In comparing the weather of December and November, December experiences slightly cooler temperatures, with a minimum of -6°C (22°F) compared to November's 0°C (32°F). Both months have similar maximum temperatures, peaking at around 28°C (82°F) for December and 28°C (84°F) for November, but December has a lower average temperature of 13°C (56°F) compared to November's 16°C (60°F). Precipitation is less frequent in December, with only 8 mm (0.3 in) of rain falling over one day, while November sees 12 mm (0.5 in) of rain over the same duration. Despite these differences, both months maintain a high humidity level of 87%. For more detailed insights, check out San Blas weather in November.
In December, San Blas experiences a refreshing shift in weather compared to other months. With average temperatures averaging a cool 13°C (56°F), it offers a pleasant respite from the heat of the summer. While maximum temperatures reach a comfortable 28°C (82°F), the nights can drop to a chilly -6°C (22°F), making layered clothing essential for evening outings. Rain is scarce, with only about 8 mm (0.3 in) accumulating over a mere one day, resulting in low humidity levels that hover around 87%. This unique combination of mild temperatures and minimal rainfall makes December an ideal time to explore and enjoy the beauty of this coastal paradise. For more insights about the climate throughout the year, visit San Blas Climate.